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TI-2022-05235 Aliases CVE-2022-20676GHSA-mm24-m3qx-g7j8

Cisco IOS XE Software Tool Command Language Privilege Escalation Vulnerability

Priority LOW 29CWE-250Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-250.

Summary

A vulnerability in the Tool Command Language (Tcl) interpreter of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root-level privileges. This vulnerability is due to insufficient input validation of data that is passed into the Tcl interpreter. An attacker could exploit this vulnerability by loading malicious Tcl code on an affected device. A successful exploit could allow the attacker to execute arbitrary commands as root. By default, Tcl shell access requires privilege level 15.

Why it matters now

EPSS 0.00283 20th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco IOS XE Softwareall versions—No fix listedCNA
  • Cisco IOS XE Software VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 29

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:16.12.1z2:*:*:*:*:*:*:*16.12.1z2VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:*17.2.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.2.1a:*:*:*:*:*:*:*17.2.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.2.1r:*:*:*:*:*:*:*17.2.1rVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:*17.2.1vVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.2.2:*:*:*:*:*:*:*17.2.2VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.2.3:*:*:*:*:*:*:*17.2.3VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.1:*:*:*:*:*:*:*17.3.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.1a:*:*:*:*:*:*:*17.3.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.1w:*:*:*:*:*:*:*17.3.1wVulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:16.12.1z2:*:*:*:*:*:*:* Versions 16.12.1z2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.2.1:*:*:*:*:*:*:* Versions 17.2.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.2.1a:*:*:*:*:*:*:* Versions 17.2.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.2.1r:*:*:*:*:*:*:* Versions 17.2.1r Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.2.1v:*:*:*:*:*:*:* Versions 17.2.1v Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.2.2:*:*:*:*:*:*:* Versions 17.2.2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.2.3:*:*:*:*:*:*:* Versions 17.2.3 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.1:*:*:*:*:*:*:* Versions 17.3.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.1a:*:*:*:*:*:*:* Versions 17.3.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.1w:*:*:*:*:*:*:* Versions 17.3.1w Vulnerable ·Cisco
Show 19 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:17.3.1x:*:*:*:*:*:*:*17.3.1xVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.1z:*:*:*:*:*:*:*17.3.1zVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.2:*:*:*:*:*:*:*17.3.2VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.2a:*:*:*:*:*:*:*17.3.2aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.3:*:*:*:*:*:*:*17.3.3VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.3a:*:*:*:*:*:*:*17.3.3aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.4:*:*:*:*:*:*:*17.3.4VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.4a:*:*:*:*:*:*:*17.3.4aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.4b:*:*:*:*:*:*:*17.3.4bVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.3.4c:*:*:*:*:*:*:*17.3.4cVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.4.1:*:*:*:*:*:*:*17.4.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.4.1a:*:*:*:*:*:*:*17.4.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.4.1b:*:*:*:*:*:*:*17.4.1bVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.4.1c:*:*:*:*:*:*:*17.4.1cVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.4.2:*:*:*:*:*:*:*17.4.2VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.4.2a:*:*:*:*:*:*:*17.4.2aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.5.1:*:*:*:*:*:*:*17.5.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.5.1a:*:*:*:*:*:*:*17.5.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:17.5.1c:*:*:*:*:*:*:*17.5.1cVulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:17.3.1x:*:*:*:*:*:*:* Versions 17.3.1x Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.1z:*:*:*:*:*:*:* Versions 17.3.1z Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.2:*:*:*:*:*:*:* Versions 17.3.2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.2a:*:*:*:*:*:*:* Versions 17.3.2a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.3:*:*:*:*:*:*:* Versions 17.3.3 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.3a:*:*:*:*:*:*:* Versions 17.3.3a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.4:*:*:*:*:*:*:* Versions 17.3.4 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.4a:*:*:*:*:*:*:* Versions 17.3.4a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.4b:*:*:*:*:*:*:* Versions 17.3.4b Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.3.4c:*:*:*:*:*:*:* Versions 17.3.4c Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.4.1:*:*:*:*:*:*:* Versions 17.4.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.4.1a:*:*:*:*:*:*:* Versions 17.4.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.4.1b:*:*:*:*:*:*:* Versions 17.4.1b Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.4.1c:*:*:*:*:*:*:* Versions 17.4.1c Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.4.2:*:*:*:*:*:*:* Versions 17.4.2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.4.2a:*:*:*:*:*:*:* Versions 17.4.2a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.5.1:*:*:*:*:*:*:* Versions 17.5.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.5.1a:*:*:*:*:*:*:* Versions 17.5.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:17.5.1c:*:*:*:*:*:*:* Versions 17.5.1c Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-20676
  2. 2026-10-03 Alias added: GHSA-mm24-m3qx-g7j8

References

Advisory 1

  • TI-2023-06904 Cisco is providing an update for the ongoing investigation into observed exploitation of… KEVCVSS 3.1CRITICAL 10.0
  • TI-2018-00122 Memory corruption in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
  • TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
  • TI-2017-04497 Memory corruption in Cisco IOS XE Software KEVCVSS 3.1HIGH 8.8
See all 561 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences